Error on Profile of Robert I, King of Scots

Fred Patton Jr. has an error on "Robert the 1st" King of Scots, profile.
He listed "Robert the 2nd" as the son of "Robert the 1st",
when in fact "Robert the 2nd", was "Robert the 1st's" GRANDSON.

"Robert the 1st's" daughter, "Marjorie" was "Robert the 1st's" daughter, and SHE was "Robert the 2nds" Mother.

I am Robert the 1st's 22nd Great Grandson